Vilon batch variation: has anyone tested two lots?

Not a complaint, just documenting it in case it’s useful to someone.

Went through the Institute reports on this and it’s genuinely useful, but I only understand maybe 60% of what I’m looking at.

Tried to verify a COA myself by emailing the lab on it. Never heard back. Not sure if that means anything.

For what it’s worth the Institute has 1 published Vilon report, which is where I started.

If this has already been answered somewhere just point me at it.